This Flir HS-324 Command thermal camera has a 320x240 sensor, 30Hz refresh rate, 19mm lens, and a maximum range of 500 yards. The HS-324 Command was built to capture evidence and can record pictures and videos onto an internal SD card. With an iris-style eyecup to control light emissions, this thermal camera features military standard white-hot and black-hot displays as well as 4 levels of Instalert™ polarity which isolates subjects above a certain temperature and highlights it bright red. FLIR 431-0003-11-00 HS-324 COMMAND